A genetic test maker is asking the FDA to approve its personalized DNA test in a move that, if successful, could boost acceptance of technology that is viewed skeptically by leading scientists who question its usefulness.

The first drug shown to prevent HIV infection won the endorsement of a panel of federal advisers Thursday, clearing the way for a landmark approval in the 30-year fight against the virus that causes AIDS.

A FDA scientific advisory panel says dissolvable tobacco products could reduce health risks compared with smoking cigarettes but also have the potential to increase the overall number of tobacco users.